What is m on gear shift?

"M" on a gear shift typically stands for "manual" mode. This mode allows the driver to manually select the gears they want to use, giving them more control over the vehicle's speed and power. In manual mode, the driver can upshift or downshift using paddle shifters or buttons located on the steering wheel or gear shift. This can be useful in situations where the driver wants to have more control over the vehicle's performance, such as when driving on hilly terrain or in sportier driving conditions.